Cyclosporina^ DiirvillcTeaccse, Diirvillaea. 221 



ficies frondis liiiic iiido rugiilosa at(iuo riniosa; huniefacUo a<iUiTe 

 inibitiono pondus sat notibilo aebiuirunt, Scutuni basale niagnuui, 

 suhorbiculare, stipitos aut singulos aut plurcs seuiper tanion indi- 

 visos proferens. 



2. Durvillaea Harveyi Hoolv. fil. in Lond. Journ. P.ot. 1845, p. 249, 345 

 Crypt. antarct. 11, p. 150, t. CLXV-CLXVI, Kuetz. Sp. p. 585, J. 

 Ag. Sp. I, p. 189, Grabendoerfer Beitr. z. Kenntn. d. Tange 1885, 



]). 0-13. t. VI, f. 1-8 (u])i de fonna exteriori et structura frondis 

 ot organi radicalis, do laniincO evolutione et de conceptaculis aniple 

 disseritur), Ilunantlialia Ditrcilkei Bory Voyage Coixuilie p. 185, 

 [(luae, suadente J. Agardli. (][ui specinien a Bory missuni scrutatus 

 est, vix ab Himantlmlia Lorea Lyngb. differt, observante e con- 

 trario Areschoug cuni Lesso7iia Suhrii J. Ag. bene congruit]. — 

 Adparatu adfixionis subbulboso prima c^otate farcto, dein pertuso 

 h. 0. e flbris crassis demum anastomosantibus constante, stipite 

 perbrevi, valido, compresso, solido (nec lacunoso) in laminam sub- 

 solidam, coriaceam, ambitu ellipticam, apice hiciniatam margineque 

 sa3pe denticulatam gradatim attenuato. 



Ilab. in mari Australi ad insulam «Hermite », ad Caput «Horn» 

 et ad insulas Maluinas. — Radix flbrosa, flbris crassis, inter se 

 intricatis demum anastomosantibus discum callumve pertusum 

 eflhcientibus. Lamina 4-8-pedalis, supra medium 1-3 pedes lata, 

 plerumque late lanceolata, basi angustata et in stipitem valde com- 

 pressum gradatim abiens, apicem versus in lacinias plures lineari- 

 elongatas ligulatas abbreviatasve acutas truncatasve fissa, siccitate 

 atro-fusca vel subpicea, opaca, dura, subfragifls, lineis superflciali- 

 bus striolata vel subreticulata. propter conceptacula per totam fron- 

 dem sparsa et prominula quasi mamillosa, madore olivaceo-brun- 

 nea, coriacea vel fiaccida, plana, levis, 2-10 mm. crassa. 



3. Durvlllaea Montagnei Kuetz. Sp. p. 585 [Laminaria ccepasstipes 3i() 

 ^lont. in D*Orbigny Serfc. Patag. p. 11, tab. 2, Ecklonia cmpccsti- 

 pes Kndl., IIali//nenia incurvata Suhr Beitr. p. 68, f. 42??). — 

 Adparatu adflxionis bulboso (hemisphjorico) non pertuso; stipite 

 teroti, crassitie digiti mininii, (2-3 uncias longo), lamina bipedali 

 basi cuneata crassa sensim dilatata deinde in segmenta ensiformia 

 in^ioqualia apice profunde laciniato-multiflda, laciniis ultimis longis 

 angustissimis flagelliformibus divisa. 



Hah. ad oras Americio antarcticaj et ad insulas Maluinas (Mon- 

 tagne). — Substantia stipitis dura, (puisi lignosa, laminie vero co- 

 riacea. 



